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Model rocket
Model rocketry is a hobby similar to building model airplanes. In the hobby today, there are two distinct areas of rocket activity: amateur (or experimental) rocketry, and model rocketry (including ... > more -
Electrical engineering
Electrical engineering (sometimes referred to as electrical and electronic engineering) is a professional engineering discipline that deals with the study and application of electricity, electronics ... > more -
Shear stress
In physics, shear stress is a stress state in which the shape of a material tends to change (usually by "sliding" forces -- torque by transversely-acting forces) without particular volume ... > more -
Weapons Technology
Nuclear Energy
Renewable Energy
Energy and the Environment
Physics
Environmental Science
Effects of nuclear explosions
A nuclear explosion occurs as a result of the rapid release of energy from an uncontrolled nuclear reaction. The driving reaction may be nuclear fission, nuclear fusion or a multistage cascading ... > more -
Water turbine
A water turbine is a rotary engine that takes energy from moving water. Water turbines were developed in the nineteenth century and were widely used for industrial power prior to electrical grids. ... > more -
Air conditioning
An air conditioner (AC or air-con) is an appliance or mechanism designed to extract heat from an area using a refrigeration cycle. In construction, a complete system of heating, ventilation and air ... > more -
Transformer
A transformer is an electrical device that transfers energy from one circuit to another by magnetic coupling with no moving parts. A transformer comprises two or more coupled windings, or a single ... > more
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